Thread: libpq (Postgres 7.2.1) + MacOS X 10.1.5 problem

Here's my simple program:

#include <stdio.h>
#include <libpq-fe.h>

int main() {       int i, j;       PGconn *dbconn;       PGresult *results;
       dbconn = PQconnectdb(     "hostaddr=AN_IP_ADDR user=USERNAME dbname=SOMEDB" );
       results = PQexec( dbconn, "select * from account" );
       for( i = 0; i < PQntuples( results ); i++ ) {               printf( "Row #%i\n", i );
               for( j = 0; j < PQnfields( results ); j++ ) {                       printf( "    Field: %16s / Value:
%s\n",           PQfname( results, j ), PQgetvalue( re            sults, i, j )         );               }       }
 
       PQfinish( dbconn );       return( 0 );
}

I'm trying to compile a simple program using libpq and initially get
the following linker error:

-g -Wall -I/usr/local/pgsql/include -L/usr/local/pgsql/lib -lpq test.c
-o test
/usr/bin/ld: table of contents for archive:
/usr/local/pgsql/lib/libpq.a is out of date; rerun ranlib(1) (can't
load from it)
make: *** [all] Error 1

After running ranlib on libpq.a, I get the following:

gcc -g -Wall -I/usr/local/pgsql/include -L/usr/local/pgsql/lib -lpq
test.c -o test
/usr/bin/ld: Undefined symbols:
_PQconnectdb
_PQexec
_PQfinish
_PQfname
_PQgetvalue
_PQnfields
_PQntuples
make: *** [all] Error 1

Any ideas?

-Stephen

Get that -lpq after the C file in the link line.

---------------------------------------------------------------------------

Stephen Lee wrote:
> Here's my simple program:
> 
> #include <stdio.h>
> #include <libpq-fe.h>
> 
> int main() {
>         int i, j;
>         PGconn *dbconn;
>         PGresult *results;
> 
>         dbconn = PQconnectdb( 
>         "hostaddr=AN_IP_ADDR user=USERNAME dbname=SOMEDB" 
>     );
> 
>         results = PQexec( dbconn, "select * from account" );
> 
>         for( i = 0; i < PQntuples( results ); i++ ) {
>                 printf( "Row #%i\n", i );
> 
>                 for( j = 0; j < PQnfields( results ); j++ ) {
>                         printf( "    Field: %16s / Value: %s\n",
>                 PQfname( results, j ), PQgetvalue( re
>                 sults, i, j ) 
>             );
>                 }
>         }
> 
>         PQfinish( dbconn );
>         return( 0 );
> }
> 
> I'm trying to compile a simple program using libpq and initially get
> the following linker error:
> 
> -g -Wall -I/usr/local/pgsql/include -L/usr/local/pgsql/lib -lpq test.c
> -o test
> /usr/bin/ld: table of contents for archive:
> /usr/local/pgsql/lib/libpq.a is out of date; rerun ranlib(1) (can't
> load from it)
> make: *** [all] Error 1
> 
> After running ranlib on libpq.a, I get the following:
> 
> gcc -g -Wall -I/usr/local/pgsql/include -L/usr/local/pgsql/lib -lpq
> test.c -o test
> /usr/bin/ld: Undefined symbols:
> _PQconnectdb
> _PQexec
> _PQfinish
> _PQfname
> _PQgetvalue
> _PQnfields
> _PQntuples
> make: *** [all] Error 1
> 
> Any ideas?
> 
> -Stephen
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
>     (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073